package client import ( "context" "time" ) var ( reconnectingTimeout = 5 * time.Second ) type Guard struct { ctx context.Context relayClient *Client } func NewGuard(context context.Context, relayClient *Client) *Guard { g := &Guard{ ctx: context, relayClient: relayClient, } return g } func (g *Guard) OnDisconnected() { timeout := time.NewTimer(reconnectingTimeout) defer timeout.Stop() select { case <-timeout.C: _ = g.relayClient.Connect() case <-g.ctx.Done(): return } }